#! /usr/bin/env python
# 
# Concatenate bib file(s) to stdout.  Each file is parsed then the BibTeX
# records are regenerated.
#

# Copyright (c) 2007, Peter Corke
#
# All rights reserved.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
#     * Redistributions of source code must retain the above copyright
#       notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above copyright
#       notice, this list of conditions and the following disclaimer in the
#       documentation and/or other materials provided with the distribution.
#     * The name of the copyright holder may not be used to endorse or 
#	promote products derived from this software without specific prior 
#	written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS AND CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
# THE POSSIBILITY OF SUCH DAMAGE.

import Bibliography;
import BibEntry;
import BibTeX;
import string;
import sys;
import optparse;

resolve = False;


## parse switches
usage = '''usage: %prog [options] [bibfiles]

:: Concatenate bib file(s) to stdout.  
::   Each file is parsed then the BibTeX records are regenerated'''
p = optparse.OptionParser(usage)
p.add_option('--ignore', dest='ignore', action='store_true',
             help='ignore duplicate items');
p.add_option('--nostrings', dest='dumpStrings', action='store_false',
             help='dump string definitions');
p.add_option('-v', '--verbose', dest='verbose', action='store_true',
             help='print some extra information');
p.add_option('--resolve', dest='resolve', action='store_true',
             help='resolve cross reference entries');
p.set_defaults(ignore=False, dumpStrings=True, verbose=False, resolve=False);
(opts, args) = p.parse_args()
globals().update(opts.__dict__)

if len(args) == 0 and sys.stdin.isatty():
	p.print_help();
	sys.exit(0);

## read the input files	
bib = BibTeX.BibTeX();
if args:
	for f in args:
		nbib = bib.parseFile(f, ignore=ignore);
		if verbose:
			sys.stderr.write( "%d entries read from %s\n" % (len(bib), f) );
else:
	nbib = bib.parseFile();
	if verbose:
		sys.stderr.write( "%d entries read from stdin\n" % (len(bib),) );

if resolve:
	bib.resolveAbbrev();

if verbose:
	sys.stderr.write( "%d abbreviations to write\n" % len(outbib.getAbbrevs()) );
	sys.stderr.write( "%d entries to write\n" % len(outbib) );
if dumpStrings:
	bib.writeStrings();
bib.write(resolve=resolve);
